Reproducible on both Arch Linux (Plasma 5.18 beta) and Neon unstable edition. STEPS TO REPRODUCE 1. open system settings > account details > user manager 2. click on "+" button on bottom 3. in the first text field, type the desired user name 4. type nothing in "Real Name" and "Email address" fields 5. set the account's password 6. leave both checkboxes unchecked 7. click on "Apply" button OBSERVED RESULT user account creation fails silently. User Manager creates the user account as expected if I type something in "Real Name" field. EXPECTED RESULT user manager can create a user account without a "Real Name". SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 5.17.90 KDE Frameworks Version: 5.66.0 Qt Version: 5.14.0
*** This bug has been marked as a duplicate of bug 409799 ***